[SDK-2474] Fix for sending URI scheme as universal_link_url

[nsingh-branch]

Reference

SDK-2474 -- Fix for sending URI schemes as universal_link_urls

Summary

When the app was opened via URI scheme, the SDK was incorrectly setting the universal_link_url as that URI. This is because the URI would be passed into the request factory and there wasn't a check for if it was actually a universal link instead of a URI. This would lead to requests incorrectly having external_intent_uri and universal_link_url be the same value.
This change adds a check for if urlString contains http or https to confirm its a universal link.

Motivation

To avoid having universal_link_url wrongly set to a URI.

Type Of Change

• Bug fix (non-breaking change which fixes an issue)

Testing Instructions

Open your app via a uri scheme (e.g. branchtest://) before and after the change and observe the external_intent_uri and universal_link_url fields in the requests to make sure they look correct.

cc @BranchMetrics/saas-sdk-devs for visibility.